A nerd or a person that needs a lot of attention who is uploading clips of him/herself on youtube every time he/she is bored and has nothing to do.
Gary: " what are you doing?"
Glen: "nothing, just chillin, i'm by the computer, will probably write a blog and upload clips on youtube of myself later on."
Glen's mom (eavesdropping): "Glen, you just have to stop being such a youwhore.
Gary: haha, you're mom is right, you such a hooker...